#include <iostream>
#include <cstring>
using namespace std;

int main(){
	char arr[10] = "abcdef";
	int n = strlen(arr);
	cout << n << endl;
	int sz = sizeof(arr)/sizeof(arr[0]);
	cout << sz << endl;
	char ch4[] = {'a','b','c','d','e','f'};
	cout << strlen(ch4) << endl;

	return 0;
}
